Alarm Management - Ravelli HR EVO 300 SMART Manual De Uso Y Mantenimiento

ALARM MANAGEMENT

Alarms are indicated by an acoustic signal (if activated) and a message on the control panel.
In case of an alarm, shut down the boiler, eliminate the cause and restart the boiler according to the normal procedure described in
this manual.
Every alarm status causes immediate boiler shutdown.
The alarms, with causes and cures, which can appear on the control panel are listed below:
Alarms (table with reference codes)
SIGNAL ANOMALY
AL 1 No power during the
POWER FAILURE lighting and operation
stage.
AL 2 Occurs in case of a flame
FLAME PROBE temperature probe fault.
Occurs if the fume probe
AL 3
detects a fume tempera-
HOT FUMES
ture above the limit.
AL 4 Occurs when the fume
FAN FAIL extraction fan is faulty.
AL 5 No flame in ignition
NO IGNITION stage.
AL 6 Fire pot not fed with
NO PELLETS pellets.
Occurs in case of cutting
AL 7 in of the auger duct
THERMAL SAF temperature safety ther-
mostat.
In the work stage the
AL 8 boiler detects a pressure
NO NEG PRESS below the vacuum switch
setting threshold.
AL 9 Appears when the com-
INSUFF bustion air flow is below a
DRAUGHT certain threshold.
Occurs in case of cutting
AL A
in heating chamber
SAFETY H2O
water temperature safety
thermostat.
Use and maintenance manual HR EVO Smart
POSSIBLE CAUSES
Disconnection from the grid.
Power failure in the grid.
Failure of electrical and electronic
components.
Probe fault.
The probe is disconnected from the
board.
Too many pellets.
Reduced heat exchange
in the system.
The fume fan is blocked.
Faulty speed control sensor.
No power to fume fan.
The pellet hopper is empty.
The heater is faulty, dirty or not correct-
ly positioned.
Pellet load setting incorrect.
The pellet hopper is empty.
The pellet loading gearmotor has to
adjust.
The gearmotor does not load pellets.
The safety thermostat has detected a
temperature above the setting thresh-
old due to overheating of the bottom
part of the hopper blocking gearmotor
operation.
The combustion chamber is dirty.
The fume duct is obstructed.
The fire door is not closed.
The overpressure valves are open-
stuck.
Faulty vacuum switch.
The combustion chamber is dirty.
The fume duct is obstructed.
The fire door is not closed.
The overpressure valves are open-
stuck.
Faulty air flow meter.
The safety thermostat has detected a
temperature above the setting thresh-
old due to overheating of the heating
chamber water blocking gearmotor
operation.
Rev.1 08/09/2021
Pag.49
SOLUTION
Turn the boiler OFF by pressing the
button P4 and repeat the lighting
procedure.
Other reinstatement operations must
be carried out by a service centre.
Reinstatement operations must be
carried out by a service centre.
Adjust the pellet flow.
Other reinstatement operations must
be carried out by a service centre.
Reinstatement operations must be
carried out by a service centre.
Check pellets in hopper.
Check the lighting procedures.
Other reinstatement operations must
be carried out by a service centre.
Check pellets in hopper.
Adjust the pellet flow
Other reinstatement operations must
be carried out by a service centre.
Check the cause of excessive over-
heating.
Reset the relevant safety thermostat
by pressing the reset button.
Check cleanness of the fume duct and
combustion chamber.
Check hermetic closing of the door.
Check closing of the overpressure
valves.
Other reinstatement operations must
be carried out by a service centre.
Check cleanness of the fume duct and
combustion chamber.
Check hermetic closing of the door.
Check closing of the overpressure
valves.
Other reinstatement operations must
be carried out by a service centre.
Check the cause of excessive over-
heating.
Reset the relevant safety thermostat
by pressing the reset button.
EN